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Cheap flights from St. Louis to Canada from C$ 143

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Canada departing on 3/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Canada

Cheap round-trip flights

Logo
9:54 p.m. - 10:20 p.m.STL-YVR
26h 26m1 stop
Logo
5:30 p.m. - 8:55 p.m.YVR-STL
25h 25m1 stop
C$ 310
Find Deal
Thu, 20 Nov - Thu, 4 Dec
Logo
9:54 p.m. - 4:10 p.m.STL-YVR
20h 16m1 stop
Logo
3:45 p.m. - 8:55 p.m.YVR-STL
27h 10m2 stops
C$ 319
Find Deal
Thu, 20 Nov - Thu, 4 Dec
American Airlines Logo
4:34 p.m. - 12:34 p.m.STL-YYC
21h 00m1 stop
American Airlines Logo
6:45 a.m. - 10:08 p.m.YYC-STL
14h 23m2 stops
C$ 395American Airlines
Find Deal
Sat, 25 Oct - Sat, 1 Nov
American Airlines Logo
8:00 p.m. - 12:34 p.m.STL-YYC
17h 34m1 stop
American Airlines Logo
1:29 p.m. - 11:54 p.m.YYC-STL
9h 25m1 stop
C$ 403American Airlines
Find Deal
Sat, 11 Oct - Tue, 14 Oct
Delta Logo
2:29 p.m. - 11:57 p.m.STL-YVR
11h 28m2 stops
Delta Logo
6:15 a.m. - 12:24 a.m.YVR-STL
16h 09m2 stops
C$ 479Delta
Find Deal
Tue, 21 Oct - Wed, 29 Oct
Delta Logo
6:50 a.m. - 8:54 p.m.STL-YVR
16h 04m2 stops
Delta Logo
6:15 a.m. - 12:24 a.m.YVR-STL
16h 09m2 stops
C$ 492Delta
Find Deal
Sat, 25 Oct - Tue, 28 Oct
United Airlines Logo
3:23 p.m. - 8:44 p.m.STL-YYZ
4h 21m1 stop
United Airlines Logo
7:00 a.m. - 10:49 a.m.YYZ-STL
4h 49m1 stop
C$ 580United Airlines
Find Deal
Fri, 17 Oct - Sun, 19 Oct
United Airlines Logo
12:25 p.m. - 11:38 a.m.STL-YYC
24h 13m1 stop
United Airlines Logo
12:37 p.m. - 2:25 p.m.YYC-STL
24h 48m1 stop
C$ 605United Airlines
Find Deal
Thu, 23 Oct - Fri, 31 Oct
Air Canada Logo
4:05 p.m. - 11:22 p.m.STL-YYC
8h 17m1 stop
Air Canada Logo
7:00 a.m. - 3:18 p.m.YYC-STL
7h 18m1 stop
C$ 611Air Canada
Find Deal
Mon, 20 Oct - Thu, 23 Oct
Air Canada Logo
4:05 p.m. - 7:00 p.m.STL-YYZ
1h 55mdirect
Air Canada Logo
7:00 a.m. - 10:49 a.m.YYZ-STL
4h 49m1 stop
C$ 618Air Canada
Find Deal
Fri, 17 Oct - Sun, 19 Oct

United Airlines flights from St. Louis to Canada

Our best United Airlines deals on St. Louis to Canada flight tickets
United Airlines
17 Oct
STL3:23 p.m.Lambert-St Louis
4h 21m
1 stop
YYZ8:44 p.m.Toronto Pearson Intl
19 Oct
YYZ7:00 a.m.Toronto Pearson Intl
4h 49m
1 stop
STL10:49 a.m.Lambert-St Louis
C$ 580
Find similar
United Airlines
23 Oct
STL12:25 p.m.Lambert-St Louis
24h 13m
1 stop
YYC11:38 a.m.Calgary
31 Oct
YYC12:37 p.m.Calgary
24h 48m
1 stop
STL2:25 p.m.Lambert-St Louis
C$ 605
Find similar
United Airlines
24 Sep
STL3:20 p.m.Lambert-St Louis
4h 24m
1 stop
YYZ8:44 p.m.Toronto Pearson Intl
28 Sep
YYZ7:00 a.m.Toronto Pearson Intl
4h 49m
1 stop
STL10:49 a.m.Lambert-St Louis
C$ 647
Find similar

Air Canada flights from St. Louis to Canada

Our best Air Canada deals on St. Louis to Canada flight tickets
Air Canada
20 Oct
STL4:05 p.m.Lambert-St Louis
8h 17m
1 stop
YYC11:22 p.m.Calgary
23 Oct
YYC7:00 a.m.Calgary
7h 18m
1 stop
STL3:18 p.m.Lambert-St Louis
C$ 611
Find similar
Air Canada
17 Oct
STL4:05 p.m.Lambert-St Louis
1h 55m
YYZ7:00 p.m.Toronto Pearson Intl
19 Oct
YYZ7:00 a.m.Toronto Pearson Intl
4h 49m
1 stop
STL10:49 a.m.Lambert-St Louis
C$ 618
Find similar
Air Canada
17 Oct
STL4:05 p.m.Lambert-St Louis
1h 55m
YYZ7:00 p.m.Toronto Pearson Intl
30 Oct
YYZ2:00 p.m.Toronto Pearson Intl
2h 29m
STL3:29 p.m.Lambert-St Louis
C$ 619
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Canada that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 11 September 2025.
Use the filters below to find and compare flights from St. Louis to Canada that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Thu 20/11

9:54 p.m.-10:20 p.m.

1 stop26h 26m

Vancouver Intl

Thu 4/12

5:30 p.m.-8:55 p.m.

1 stop25h 25m

C$ 310

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Thu 20/11

9:54 p.m.-4:10 p.m.

1 stop20h 16m

Vancouver Intl

Thu 4/12

3:45 p.m.-8:55 p.m.

2 stops27h 10m

C$ 319

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Sat 25/10

4:34 p.m.-12:34 p.m.

1 stop21h 00m

Calgary

Sat 1/11

6:45 a.m.-10:08 p.m.

2 stops14h 23m

C$ 395

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Sat 11/10

8:00 p.m.-12:34 p.m.

1 stop17h 34m

Calgary

Tue 14/10

1:29 p.m.-11:54 p.m.

1 stop9h 25m

C$ 403

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Tue 21/10

2:29 p.m.-11:57 p.m.

2 stops11h 28m

Vancouver Intl

Wed 29/10

6:15 a.m.-12:24 a.m.

2 stops16h 09m

C$ 479

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Sat 25/10

6:50 a.m.-8:54 p.m.

2 stops16h 04m

Vancouver Intl

Tue 28/10

6:15 a.m.-12:24 a.m.

2 stops16h 09m

C$ 492

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 17/10

3:23 p.m.-8:44 p.m.

1 stop4h 21m

Toronto Pearson Intl

Sun 19/10

7:00 a.m.-10:49 a.m.

1 stop4h 49m

C$ 580

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 23/10

12:25 p.m.-11:38 a.m.

1 stop24h 13m

Calgary

Fri 31/10

12:37 p.m.-2:25 p.m.

1 stop24h 48m

C$ 605

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Mon 20/10

4:05 p.m.-11:22 p.m.

1 stop8h 17m

Calgary

Thu 23/10

7:00 a.m.-3:18 p.m.

1 stop7h 18m

C$ 611

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 17/10

4:05 p.m.-7:00 p.m.

Nonstop1h 55m

Toronto Pearson Intl

Sun 19/10

7:00 a.m.-10:49 a.m.

1 stop4h 49m

C$ 618

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Canada from

How to get the cheapest flight ticket from St. Louis to Canada

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Canada?

In general, November is the cheapest month to fly from St. Louis to Canada. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 375. If you’re not able to fly to Canada in November, then January is your next best option. Flight prices from St. Louis to Canada during January average around C$ 396.

What is the cheapest day to depart on your flight to Canada?

Our data shows that Thursday is the least expensive day to fly to Canada. Tickets to fly out on this day can be as low as C$ 357. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around C$ 929. These prices are subject to change though, so be sure to set up a Price Alert for flights to Canada.

What is the cheapest time of day to depart on your flight to Canada?

According to our data, the cheapest time of day to fly to Canada is at noon. momondo users have found flights departing from St. Louis to Canada at noon for as low as C$ 594. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Canada, so prices are often more expensive at around C$ 783 per ticket.

What is the cheapest Lambert-St Louis to Canada flight route?

Fly from Lambert-St Louis to Toronto Pearson Intl for the best Lambert-St Louis - Canada flight prices

How far in advance should I book a flight to Canada?

You are more likely to see cheaper flights to Canada from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Canada for around C$ 641 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Canada from St. Louis for as low as C$ 306 on momondo.

What cabin class options are available on Lambert-St Louis to Canada flights?

There is only 1 cabin class available to choose from on Lambert-St Louis to Canada flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Canada flights?

You could potentially save up to 30% on your flight if you consider stops on a St. Louis to Canada flight.

Cheap St. Louis to Canada flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Canada

Best price found

C$ 350

Fastest flight time

1h 55m

Direct flights

Mon, Wed, Thu, Fri, Sat and Sun

Airports in Canada

2 airports
The best one-way flight to Canada from St. Louis in the past 72 hours is C$ 350. The best round-trip flight deal from St. Louis to Canada found on momondo in the last 72 hours is C$ 841.
The fastest flight from St. Louis to Canada takes 1h 55m
Direct flights go from St. Louis to Canada on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is Air Canada.
There are 2 airports near Canada: Montreal Pierre Elliott Trudeau Intl (YUL), Toronto Pearson Intl (YYZ)
Search flight deals

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Canada?

    Prices for flights from Lambert-St Louis Airport to Canada are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Canada?

  • How old do you have to be to fly from Lambert-St Louis Airport to Canada?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Canada.

  • What documentation or ID do you need to fly to Canada?

    The travel and health documents you'll need for your trip to Canada may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Canada. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from St. Louis to Canada?

Best airlines flying from St. Louis to Canada

Compare and see reviews for airlines that fly from St. Louis to Canada with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom C$ 302Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Canada?

It is quick and easy to find St. Louis to Canada flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Canada that suits you.

Can I find flights from St. Louis to Canada with flexible booking policies on momondo?

Yes. All flights to Canada from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from St. Louis to Canada?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Canada.

I’m not ready to book a flight from St. Louis to Canada right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Canada now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Canada and let you know when they change.

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Find better results for your trip to Canada

Popular Cities in Canada

Popular flights according to clicks in the last 7 days on momondo
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